right turn for Point Au Roche State Park. Continuing northward, the road deviates to the east slightly in the Town of Chazy, but returns to its previous track by the interstate at the Little Chazy River bridge. Shortly afterwards, US 9 intersects County Route 23 (Miner Farm Road, formerly NY 191 west of US 9). US 9 runs straight due north, no longer taking another name, to the next major intersection, NY 9B (Lavalley Road), its last sub-route. NY 9B does not terminate but instead runs to the lake shore and eventually north to Rouses Point. A bend slightly to the west, closer to the Northway, brings the next stretch to US 9's last major intersection, US 11, just south of Champlain. US 9 winds through the quiet border village as its Main Street, turning west-northwest near Champlain's northern boundary to make its last water crossing over the Chazy River. The route, still known as Main Street, heads northwest towards the Northway to follow it for the last , passing a few customs brokerages towards its official end at the on-ramp to the last exit. Traffic to Canada must get on I-87 here. The roadway continues as the East Service Road, unsigned NY 971B, for another . This was the former route of US 9 to the border prior to the construction of the Northway. It is devoid of any development save some long vacant and abandoned lots, finally ending in a parking lot south of the border from which the Canadian customs station at the south end of Autoroute 15 is visible. History Origins South of Albany, the main route of travel before the 20th century was the Albany Post Road, wending from New York City to a ferry at Greenbush. North of Albany, US 9 replaced the Great Northern Road, which ran from the Hudson River near Glen Falls through Schroon Lake and Elizabethtown to the Canadian border; this road became a toll road in the 1800's, known as the Great Northern Turnpike. In the early 20th century, much of the Albany Post Road was signed as an auto trail of the same name, though south of Tarrytown the trail skewed eastward along Nepperan Road and Sleepy Hollow Road to Elmsford; Hartsdale Road to Hartsdale; Central Avenue, Jerome Avenue, and the Grand Concourse to Manhattan; 149th Street, 7th Ave, 110th St, and 5th Ave to Washington Square. Much